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モデム 3onedata MODEL7302のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。3onedata MODEL7302 10 ページ。 Fe1 optic fiber modem
S5.8: Pseudo-random code test, ON valid, and valid at loopback status.
MODEL7302 bottom coded switch:
After time slot 0 is valid, other coded switches in whatever positions are all valid.
Select the number of time slots according to the expected rate. Normally for an independent
type, a time slot setting of automatic tracking Central Site module is selected. Coded switches
of plate-clip time slot correspond to S1, S2, S3 and S4.
48V DC: DC -48V power supply connector
The others are the same as AC Rear Panel
4.3 Front/Rear panels of Rack-mountable casing:
RACK front panel:
+5V: 5V main power supply indicator lamp
+12V: 12V fan power supply indicator lamp
Under the panel is a group of indicator lamps matrix:
PWR : power supply lamp;
RXD : lightening upon data receiving;
TXD : lightening upon data sending;
LOS : lightening when the optic line or E1line gets lost;
LOF : lightening after a synchronization of data out-of-frame;
TEST : lightening during loopback test;
PTOK: lightening after a successful pseudo-random code test;
Bottom Coded Switch
Rear Panel of MODEL7302/DC
Front Panel of RACK
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MODEL7302 User Manual